A search for an unexpected asymmetry in the production of $e^{+}{\mu }^{-}$ and $e^{-}{\mu }^{+}$ pairs in proton-proton collisions recorded by the ATLAS detector at $\sqrt{s}=13$ TeV

ATLAS Collaboration

This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for $e^{+}{\mu }^{-}$ and $e^{-}{\mu }^{+}$ pairs to constrain physics processes beyond th…